CN203383775U - Filling permanent-solidification type sleeve-outside packer - Google Patents
Filling permanent-solidification type sleeve-outside packer Download PDFInfo
- Publication number
- CN203383775U CN203383775U CN201320483422.XU CN201320483422U CN203383775U CN 203383775 U CN203383775 U CN 203383775U CN 201320483422 U CN201320483422 U CN 201320483422U CN 203383775 U CN203383775 U CN 203383775U
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- China
- Prior art keywords
- packer
- sleeve
- rubber sleeve
- inner sealing
- outside
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- Expired - Lifetime
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- Consolidation Of Soil By Introduction Of Solidifying Substances Into Soil (AREA)
Abstract
The utility model relates to a filling permanent-solidification type sleeve-outside packer which is suitable for being arranged outside a sleeve under an oil field well to pack different stratum sections. The filling permanent-solidification type sleeve-outside packer is composed of an upper coupling (1), a central pipe (2), an inner sealing rubber sleeve (4), an outer protective rubber sleeve (5), a valve hoop (6) and a lower connector (7). The position between the inner sealing rubber sleeve (4) and the central pipe (2) is filled with solidification expanding agents (3). When the filling permanent-solidification type sleeve-outside packer is used, the filling permanent-solidification type sleeve-outside packer is placed at the designed position inside the oil field well, the pressure is built, water or mud enters a cavity between the inner sealing rubber sleeve (4) and the central pipe (2) through the valve hoop (6), the inner sealing rubber sleeve (4) and the outer protective rubber sleeve (5) are expanded, meanwhile, the water or the mud is mixed with the solidification expanding agents (3) which the cavity between the inner sealing rubber sleeve (4) and the central pipe (2) is filled with to form a mixed solution, the mixed solution is solidified after a certain time, the whole packer forms a solid, the leakage and efficacy loss phenomena can not occur in the rubber sleeves of the packer, the sealing reliability of the packer is greatly improved, and the service life of the packer is greatly prolonged.
Description
Technical field
The utility model relates to a kind of filling permanent type external packer of pipe, is applicable to the different stratomere of oil field well packing outside sleeve pipe.
Background technology
Under the Oil/gas Well conditions of complex geological, in Well Completion Engineering of Oil Reservoirs, the normal external packer of pipe that uses is isolated different intervals, as height kill-job section, oil-water well section etc., at present the on-the-spot external packer of pipe used mainly contains two kinds of fill-type and compressions: fill-type is the method that fill liquid makes its isolation of expanding in the packing element cavity, characteristics are that expansion ratio is large, the large hole diameter packing of suitable bore hole, shortcoming is that in the aging damaged rear chamber of down-hole mal-condition lower rubber cylinder, the liquid earial drainage out loses the packing effect; Compression is to become and realize that greatly packing, characteristics are that the entity packing element is not easy to lose efficacy by compression packing element diameter, and seal pressure differential is also relatively large, but compression-expansion is difficult to adapt to the large hole diameter of bore hole or irregular borehole than limited.
Summary of the invention
The purpose of this utility model is to provide a kind of filling stationary external packer of pipe, has expansion ratio large, and after filling, charges do not run off, and packing is effective, and the life-span is long.
The utility model is achieved in that it is comprised of upper box cupling, central tube, interior cartridge, outer protection packing element, valve hoop, lower contact, is filled with the setting expansion agent between interior cartridge and central tube.During use; by under filling permanent type external packer of pipe to design attitude in oil well; build the pressure; water or mud are entered in the cavity between interior cartridge and central tube by the valve hoop; interior cartridge and outer protection packing element are expanded; simultaneously; between water or mud and interior cartridge and central tube in cavity the special chemical solution of filling mixes after the formation mixed solution; and solidify after certain hour; make whole packer form an entity; packing element not there will be the leakage failure phenomenon, greatly improves sealing reliability and the application life of packer.
The utility model is simple in structure, combines the advantage of fill-type external packer of pipe and compression external packer of pipe, has casted away again their shortcoming, has greatly improved completion quality and Oil/gas Well life-span.
The accompanying drawing explanation
Fig. 1 is the utility model structure principle chart.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is described in detail: it is comprised of upper box cupling (1), central tube (2), interior cartridge (4), outer protection packing element (5), valve hoop (6), lower contact (7), between interior cartridge (4) and central tube (2), is filled with setting expansion agent (3).During use, by under filling permanent type external packer of pipe to design attitude in oil well, build the pressure, water or mud are entered in the cavity between interior cartridge (4) and central tube (2) by valve hoop (6), interior cartridge (4) and outer protection packing element (5) are expanded, simultaneously, in cavity between water or mud and interior cartridge (4) and central tube (2) the setting expansion agent (3) of filling mixes after the formation mixed solution, and solidify after certain hour, make whole packer form an entity, packing element not there will be the leakage failure phenomenon, greatly improve sealing reliability and the application life of packer.
Claims (1)
1. a filling permanent type external packer of pipe; it is comprised of upper box cupling (1), central tube (2), interior cartridge (4), outer protection packing element (5), valve hoop (6), lower contact (7), it is characterized in that: between interior cartridge (4) and central tube (2), be filled with setting expansion agent (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320483422.XU CN203383775U (en) | 2013-08-09 | 2013-08-09 | Filling permanent-solidification type sleeve-outside packer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320483422.XU CN203383775U (en) | 2013-08-09 | 2013-08-09 | Filling permanent-solidification type sleeve-outside packer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203383775U true CN203383775U (en) | 2014-01-08 |
Family
ID=49872284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320483422.XU Expired - Lifetime CN203383775U (en) | 2013-08-09 | 2013-08-09 | Filling permanent-solidification type sleeve-outside packer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203383775U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343408A (en) * | 2013-08-09 | 2015-02-11 | 胜利油田胜机石油装备有限公司 | Filling and permanent fixing type pipe external sealing and separating method and tool thereof |
| CN104859809A (en) * | 2015-02-09 | 2015-08-26 | 衡水橡胶股份有限公司 | Self-enclosed packer |
| CN105804684A (en) * | 2015-11-30 | 2016-07-27 | 中国石油化工股份有限公司 | Pressure transmission underground setting and unsetting control device for hydraulic control packer |
-
2013
- 2013-08-09 CN CN201320483422.XU patent/CN203383775U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104343408A (en) * | 2013-08-09 | 2015-02-11 | 胜利油田胜机石油装备有限公司 | Filling and permanent fixing type pipe external sealing and separating method and tool thereof |
| CN104859809A (en) * | 2015-02-09 | 2015-08-26 | 衡水橡胶股份有限公司 | Self-enclosed packer |
| CN105804684A (en) * | 2015-11-30 | 2016-07-27 | 中国石油化工股份有限公司 | Pressure transmission underground setting and unsetting control device for hydraulic control packer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140108 |
|
| CX01 | Expiry of patent term |